/*
 * Alloy Analyzer
 * Copyright (c) 2002 Massachusetts Institute of Technology
 *
 * The Alloy Analyzer is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * The Alloy Analyzer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with the Alloy Analyzer; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package alloy.ast;

import java.util.Iterator;

public class Modules extends TreeNode {

    public Modules(){
	super(Location.UNKNOWN);
    }
  
    public Modules(Location location_) {
	super(location_);
    }

    /** add a {@link Module} to this */
    public void addModule(Module module_) {
	addChild(module_);
    }

    /** add {@link Modules} to this */
    public void addModules(Modules modules_) {
	Iterator modules = modules_.getModuleIter();
	while(modules.hasNext()){
	    addChild((Module)modules.next());
	}
    }

    /** get the modules of this */
    public Iterator getModuleIter() {
	return getChildren();
    }

    /**
     * accept an AST visitor
     * @param visitor_ the visitor
     */
    protected void acceptVisitor(ASTVisitor visitor_) {
	visitor_.visit(this);
    }

    /**
     * accept a returning AST visitor
     * @param visitor_ the visitor
     * @return the Object returned by the visitor
     */
    protected Object acceptReturnVisitor(ASTReturnVisitor visitor_) {
	return visitor_.visit(this);
    }

    public String toString()
    {
        return "Modules";
    }

}

